Table 2.

Results of t-tests comparing male and female native and transformed regional volume means. Sample means as reported in Table 1 Native volume adjusted means derived from ANCOVA using the appropriate hemispheric total gray or white matter volume (total tissue volume was used as covariate for cerebral hemisphere volumes). m, male; f, female; ns, not significant. (t-test, * p ≤ 0.05; ** p ≤ 0.01)

		Native Volume				Transformed Sample Means
		Sample Means		Adjusted Means		Tal Volume		Tal50 Volume		MNI305 Volume		IA38 Volume
Region		Gray	White	Gray	White	Gray	White	Gray	White	Gray	White	Gray	White
Cerebral Hemisphere	Left	m > f **	m > f **	ns	ns	ns	ns	ns	ns	ns	ns	ns	ns
	Right	m > f **	m > f **	ns	ns	f > m *	ns	f > m *	ns	f > m *	ns	f > m *	ns
Frontal Lobe	Left	m > f **	m > f **	ns	ns	ns	ns	ns	ns	ns	m > f *	ns	m > f *
	Right	m > f **	m > f **	ns	ns	ns	ns	ns	ns	ns	ns	ns	ns
Parietal Lobe	Left	m > f **	m > f **	ns	ns	ns	ns	ns	ns	ns	ns	f > m *	ns
	Right	m > f *	m > f *	ns	ns	f > m *	ns	f > m *	ns	f > m *	ns	f > m *	ns
Temporal Lobe	Left	m > f **	m > f **	m > f **	ns	ns	ns	ns	ns	ns	ns	ns	ns
	Right	m > f **	ns	m > f *	ns	ns	ns	ns	ns	ns	ns	ns	ns
Occipital lobe	Left	ns	m > f *	ns	ns	ns	ns	ns	ns	ns	ns	ns	ns
	Right	ns	m > f **	ns	ns	ns	ns	ns	ns	ns	ns	ns	ns
Cingulate Gyrus	Left	m > f *	m > f **	ns	ns	ns	ns	ns	ns	ns	ns	ns	ns
	Right	ns	m > f **	f > m*	ns	f > m *	ns	f > m **	ns	f > m *	ns	f > m **	ns
Insula	Left	m > f **	m > f *	m > f *	ns	ns	ns	ns	ns	ns	ns	ns	ns
	Right	m > f **	m > f **	m > f *	ns	ns	ns	ns	ns	ns	ns	ns	ns
Hippocampus	left	m > f *		ns		f > m *		f > m *		ns		ns
	Right	m > f *		ns		ns		ns		f > m *		ns
Corpus Callosum			m > f **		ns		ns		ns		ns		ns